Seneca Tank believes in Cummins Power. Our 2020 Truck schedule is packed with Cummins power units. Call today to learn about build dates and availability.The 2020 production schedule is heavy with Cummins power units including Kenworth T880 and Western Star 4700 models. The X-15 gives horse power options from 485 to 605 and torque ratings from 1650 to 2050. Call and ask for an area sales representative today to learn when trucks are building that will meet your needs. Multiple Rolling Stock units are building monthly.